error on arch linux

makepkg -si in brlcad/misc/archlinux then ==> Making package: brlcad 7.40.3-1 (Sun 27 Apr 2025 01:40:14 PM EEST) ==> Checking runtime dependencies... ==> Checking buildtime dependencies... ==> Retrieving sources... ==> Extracting sources... ==> Removing existing $pkgdir/ directory... ==> Starting build()... mkdir: cannot create directory ‘~/Downloads/brlcad/misc/archlinux/src/build’: File exists ==> ERROR: A failure occurred in build(). Aborting...